EP 1816105 A8 20071010 - PROCESS AND REAGENT FOR THE TREATMENT OF INDUSTRIAL WASTEWATER
Title (en)
PROCESS AND REAGENT FOR THE TREATMENT OF INDUSTRIAL WASTEWATER
Title (de)
VERFAHREN UND REAGENS ZUR BEHANDLUNG VON INDUSTRIELLEM ABWASSER
Title (fr)
PROCEDE ET REACTIF DE TRAITEMENT D'EAUX RESIDUELLES INDUSTRIELLES
Publication
Application
Priority
ES 2004000460 W 20041021
Abstract (en)
[origin: WO2006045857A1] The invention relates to a process and reagent for the treatment of industrial wastewater. The invention is characterised in that a partially-thermally-regenerable coagulation/adsorption reagent is added to the coagulation reactor, such that water which is at least 99 % free of organic matter can be obtained using a process in which the organic matter is coagulated/adsorbed directly in a single step without the need for lamellar or static decanters. According to the invention, the sludge is separated using ultrafiltration membrane processes at a flow rate of between 90 and 95 % in relation to the inflow and without the need for added polyelectrolytes. In this way, the water is then optimal for reuse in industrial processes. The invention also enables the direct recycling of sludge from part of the rejects, with the resulting reduction in infrastructure such as pipes, pumps, civil engineering and valve systems, as well as a reduction in reactor size, energy consumption, etc. The inventive method is suitable for industrial water for oil removal, paint kiosks, reactor cleaning, etc., i.e. water that is loaded with organic compounds, such as detergents, pigments, dyes, softeners, solvents, hydrocarbons, alcohols, etc.
IPC 8 full level
C02F 1/24 (2006.01); C02F 1/28 (2006.01); C02F 1/52 (2006.01); C02F 11/121 (2019.01)
CPC (source: EP US)
C02F 9/00 (2013.01 - EP US); C02F 1/281 (2013.01 - EP); C02F 1/283 (2013.01 - EP); C02F 1/444 (2013.01 - EP); C02F 1/5236 (2013.01 - EP); C02F 1/56 (2013.01 - EP); C02F 11/121 (2013.01 - EP US); C02F 2103/14 (2013.01 - EP)
Citation (search report)
See references of WO 2006045857A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1816105 A1 20070808; EP 1816105 A8 20071010; SE 0601319 L 20060821; WO 2006045857 A1 20060504
DOCDB simple family (application)
EP 04791379 A 20041021; ES 2004000460 W 20041021; SE 0601319 A 20060615